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The COVID-19 pandemic raises the need for diverse diagnostic approaches to rapidly detect different stages of viral infection. The flexible and quantitative nature of single-molecule imaging technology renders it optimal for development of new diagnostic tools. Here we present a proof-of-concept for a single-molecule based, enzyme-free assay for detection of SARS-CoV-2. The unified platform we developed allows direct detection of the viral genetic material from patients' samples, as well as their immune response consisting of IgG and IgM antibodies. Thus, it establishes a platform for diagnostics of COVID-19, which could also be adjusted to diagnose additional pathogens.
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http://dx.doi.org/10.1101/2021.05.25.21257501 | DOI Listing |
Wellcome Open Res
August 2025
Paul G. Allen School for Global Health, Washington State University, Pullman, Washington, USA.
Arenaviruses and Hantaviruses, primarily hosted by rodents and shrews, represent significant public health threats due to their potential for zoonotic spillover into human populations. Despite their global distribution, the full impact of these viruses on human health remains poorly understood, particularly in regions like Africa, where data is sparse. Both virus families continue to emerge, with pathogen evolution and spillover driven by anthropogenic factors such as land use change, climate change, and biodiversity loss.
View Article and Find Full Text PDFJ Colloid Interface Sci
September 2025
Department of Radiation Oncology, Radiation Oncology Key Laboratory of Sichuan Province, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, University of Electronic Science and Technology of China, Chengdu 610041, China. Electronic address: Zhaoy
Lanthanide-doped fluoride nanoparticles show great potential for optical thermometry and bioimaging. However, their applications are still constrained by inherent limitations in luminescence intensity and functional versatility. To overcome these challenges, we propose a core-active shell-inert shell nanostructure that integrates multifunctional capabilities within a single platform.
View Article and Find Full Text PDFACS Nano
September 2025
Frontiers Science Center for Transformative Molecules, State Key Laboratory of Synergistic Chem-Bio Synthesis, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China.
Dynamic micro/nano-structured surfaces play pivotal roles in biological systems and engineering applications. Despite considerable progress has been made in fabricating precisely ordered architectures, achieving controlled motion in top-down fabricated structures remain a formidable challenge. Here, we introduce an advanced dynamic micron-nano optical platform featuring hierarchical microscale wrinkles integrated with ordered nanoscale arrays.
View Article and Find Full Text PDFPLoS Comput Biol
September 2025
OmnibusXLab, OmnibusX Company Limited, Ho Chi Minh City, Vietnam.
OmnibusX is an integrated, privacy-centric platform that enables code-free multi-omics data analysis by bridging computational methodologies with user-friendly interfaces. Designed to overcome challenges posed by fragmented analytical tools and high computational barriers, OmnibusX consolidates workflows for diverse technologies - including bulk RNA-seq, single-cell RNA-seq, single-cell ATAC-seq, and spatial transcriptomics - into a single, cohesive application. The application integrates established open-source tools such as Scanpy, DESeq2, SciPy, and scikit-learn into transparent, reproducible pipelines, offering users control over analytical parameters.
View Article and Find Full Text PDFLangmuir
September 2025
School of Material Science and Chemical Engineering, Harbin University of Science and Technology, Harbin 150040, China.
Electrochemical sensors capable of detecting different types of biomolecules using a single electrode are highly desirable for simplifying analytical platforms and expanding their practical applicability. Herein, we develop a multifunctional electrochemical sensor based on a 3D honeycomb-like porous rGO/PPy-POM composite film for the independent detection of dopamine (DA) and folic acid (FA), two chemically distinct and clinically relevant biomolecules. The electrode is fabricated through a facile, low-cost, and environmentally friendly breath figure method to create a 3D porous reduced graphene oxide (rGO) framework, followed by codeposition of polypyrrole (PPy) and polyoxometalates (POMs).
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